Digital BW, The Print

From the description of the inperfections it doesn't sound like they 
came from emulsion touching base - hence no development. My first 
thoughts was film that had been exposed to heat. My second thoughts was 
a problem with the fixer. Sometimes you need to shake the fixer in the 
storage bottle before you pour it in.

It could have also been air bubbles but you usually see those. Also 
depending on the water supply there may have been very fine particles 
suspended in the water that hung to the emulsion and that blocked the 
developer.

There are a number of reasons this could have happen. I'd start with 
exposing two rolls of film to a fixed target. Then develop ( and fix) 
one in distilled water and the other tap water, to rule out my water as 
the source. If both suffer the same problem, I'd note the lot on the 
film and contact Ilford.

Truman

Stephen Petegorsky wrote:

>Purple spots on the film indicate areas that did not get fixed properly.
>The odds are, from what you described, that when the film came off the reel
>it was no longer separated from other parts of the roll, and thus one part
>of the emulsion stuck to the base of another part of the film.  It's likely
>that those areas would be neither developed nor fixed, but since the fixer
>clears away the parts of the emulsion that haven't been developed or
>exposed, anything that remains (and that will look like unprocessed film)
>has to be an area that didn't get fixed.
>
>If you haven't already, practice loading the reel with an expendable roll of
>film.  Do it with your eyes open at first, so that you can see how it has to
>go, and then with your eyes closed until you're really comfortable with it.
>THEN go back to the darkroom!
>
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